For 27-inch iMac shoppers, the new options simply add more capacities to choose from since they could opt for a 768 GB SSD instead of a hard drive or Fusion Drive. For 21-inch iMac buyers, this opens up brand new choices since they previously couldn't build-to-order with an SSD.

The 256 GB SSD costs an additional US$300, and the 512 GB SSD costs $600. Both are available as upgrade options when you order a new iMac through Apple's online store.